What drug to choose when treating angina?

If the levofloxacin treatment was carried out correctly, i.e. the drug was not stopped earlier, then we try not to repeat the treatment after such a short time. This may lead to the selection of strains resistant to this substance. Doxycycline may help treat strep throat, but due to the high resistance of the strains of bacteria that cause strep throat to this antibiotic, it is not a first-line drug. So I suggest contacting a doctor who, after the examination, will choose the appropriate treatment. For my part, I would like to emphasize that the vast majority of cases of strep throat in adults are viral, not bacterial. If inflammation of the mucous membrane of the throat and tonsils is caused by viruses, then the use of antibiotics is pointless. In order to quickly check what is the cause of the disease, you can use a home test, such as: Strep A'lert. Its availability in pharmacies can be checked in the following link: https://www.gdziepolek.pl/produkty/98560/strep-alert-test-na-angine-test/apteki. Receiving a negative result suggests a viral background of the disease. I also draw attention to the need to use a probiotic both during and at least 2 weeks after the end of antibiotic treatment. This will prevent complications from the gastrointestinal tract, e.g. diarrhea. I encourage you to read the article, which may be useful: https://www.gdziepolek.pl/artykuly/jak-rozpoznac-i-leczyc-angine.